William Longsword

William Longsword (1140-1177) was the Count of Jaffa and Ascalon under the Principality of Antioch.

Biography
William Longsword was the son of Marquess William V of Montferrat, and was the older brother of the future Conrad of Jerusalem. In 1176, after many failed attempts to marry European nobility, he was chosen as the husband for Baldwin IV of Jerusalem's sister Sibylla. From 1176 to 1177 he was the Count of Jaffa and Ascalon through marriage, and he became a nobleman and general of the Principality of Antioch, another crusader state.